Spring bed-bottom.



No. 764,373. PATENTED JULY 5, 1904.

J. J. REED.

SPRING BED BOTTOM.

APPLIUATION rmsn ran. 17, 1904.

N0 MODEL.

UNITED STATES Patented July 5, 1904.

PATENT OFFICE.

JOSEPH JOHN REED, OF CHICAGO, ILLINOIS, ASSIGNOR TO HAGGARD & MARCUSSON COMPANY, OF CHICAGO, ILLINOIS, A CORPORATION OF ILLINOIS.

SPRING BE D-BOTTOIVI.

SPECIFICATION forming part of Letters Patent No. 764,373, dated July 5, 1904. Application filed February 17, 1904. Serial No. 194,046. (No model.)

To all whom it 1nwyconccrn: I

Be it known that I, JOSEPH JOHN Rum), a citizen ofthe United States, residing at Chicago, in the county of Cook and State of Illinois, have invented new and useful Improvements in Spring Bed-Bottoms, of which the following is a specification.

This invention relates to improvements in spring bed-bottoms of the class composed of helical or conical springs arranged uniformly throughout the structure in parallel rows and retained in a vertical position by a system of tie and key rods running longitudinally and transversely, the respective ends of which are secured to a surrounding border-frame.

One of the objects of this invention is the construction of a bed-bottom in which the springs are so uniformly supported and re tained in their relative vertical position that the liability of their being displaced laterally when subject to a load is reduced to a minimum and a flat even surface maintained.

Another object is to so simplify the construction that it is possible to assemble the parts with the greatest facility, and thereby reduce the cost of production.

In the drawings, Figure 1 is a plan embodying the improved features. Fig. 2 is a transverse section on line 2, Fig. 1, looking in the direction indicated by the arrow. Figs.

3 and 4c are detached details of a tie-rod, and

Fig. 5 a detached detail of the loop formed in the tie-rod adjacent to and securing the same to the border-frame.

As the general construction features of this class of bed-bottoms are of the usual wellknown character, the showing in the drawings and the description will be limited to the improved parts.

A represents the usual rectangular borderframe inclosing the series of springs B. These springs may be of the usual helical or doubleconical form ordinarily used. The tie-rods 6 run longitudinally and have their respective ends secured to the border-frame, as at a. One tie-rod is provided for each row of springs and extends along one side thereof, as shown in Fig. 1. On a straight line the tie-rods pass underneath the top coil 7 of the springs and have two contacts therewith, as at 9 and 10, where kink depressions 11 are formed and in WlllCll the top COll 7 has a retaming-bearing.

Midway between the two points of contact with each spring in the same row longitudinally the tie-rod is bent laterally over the top coil and is formed into an elongated loop C, which extends over and partly across the top of the adjacent springs in the next row, as shown in Fig. l. The loop is provided'with upwardly-bent kinks 12 at the two points of contact with the top coils of the springs in the adjacent row and provides recesses 13, with which the top coils engage, as shown in Fig. 2. The kinks 12 are located some distance back from the closed ends 14 of the loops C. This distance of the kinks from the loop ends may be varied in accordance with the width of the bed-bottom, which makes a very convenient arrangement in construction. This variation in the location of the kinks is illustrated in Figs. 3 and 4. In Fig. 3 the kinks are set back farther from the loop ends than in Fig. 4, which are nearer to the loop ends and means a wider bed. It will be noted by this arrangement that the closed ends ofthe loops do not directly engage the top coils of the springs in the next row, but pass over and terminate beyond the plane of the same, the kinks 12 forming the proper locking engagement in retaining the springs in their true vertical position, leaving the ends of the loops free. The junction of the integral loops C, where they bend away from the tic-rods, with the top coils of the springs forms a double-corner angle-support and provides a firm retaining lock and which, in connection with the feature of the closed ends-of the loops extending over more than one coil of the springs,

greatly aids in preventing the springs from.

inclining away from a vertical position when pressure is applied and quickly returning the same straight up to their normal position when the load is removed. The loops I) of the two outside tie-rods located next to the border-frame extend over the top of the frame and have the closed end bent back underneath, as shown in Figs. 1 and 5. The key-rods 15 run transversely on a line corresponding to the diametrical center of the springs and pass l underneath the top coils and over the closed 1 ends of the loops C and through and under the closed ends of loops D, then upward and looking around the border-frame, as shown in Figs. 1 and 2. The key-rods exert an upward pressure, which increases as the springs are compressed and greatly assists in returning the same to their normal position. The springs are also less liable to tip sidewise, and the lower coils are prevented from bulging up through the top coils and locked out of place. The tie-rods passing along at one side of each row of springs have an unequal pressure; but the key-rods running across the center thereof and the overlapping feature of the loop C on the opposite sides of the springs from that of the tie-rods equalizes the pressure and practically transforms the structure into a unit Without affecting in the least the spring action and flexibility required.

Having thus described my invention, what I claim, and desire to secure by Letters Patent, is

1. In a bed-bottom, the combination with a series of coil-springs occupying a vertical position and arranged in parallel rows, of an inclosing border-frame, the tie-rods running longitudinally along one side of each row of springs and passing under the top coils thereof and having kink depressions engaging said coils at two different points and provided with loops between the kink depressions which extend laterally over the tops of the coils and overlap the coils of the springs in the adjacent row, said loops being provided with kinks ineach branch thereof at a point back from the closed ends and which interlock with the top coils of the adjacent rows of springs, and the key-rods running transversely and passing under the top coils of each spring and over the closed ends of the loops in the tie-rods, substantially as set forth.

2. In a bed-bottom, the combination with a series of coil-springs arranged in parallel rows, of an inclosing border-frame, the tierods having their respective ends secured to said frame and running longitudinally along one side of each row of springs and passing under the top coils thereof and having kinks which engage the same at two different points of contact and provided centrally between the kinks with loops which extend laterally over the top coils of one row of springs and overlap the top coils of the second row, and having kinks which engage the coils from the top side, the end of the loops extending beyond the line of contact and the transverse keyrods having their respective ends secured to the border-frame and running under the top coil of the springs and over the closed free end of the loops forming an integral part of the tie-rods, substantially as set forth.

In testimony whereof I have signed my name to this specification in the presence of two subscribing witnesses.

JOSEPH JOHN REED. WVitnesses:

L. B. GoUPLAND, G. E. Cannon. 

